Bottle and cap therefor.



No. 837,648. PATENTED DEC. 4, 1906. F. E. STRGM & G. E. ELFSTROM.

BOTTLE AND GAP THEREFOR.

APPLIOATION FILED APB.19.1906.

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com anymg drawings, forming UNITED STATES PATENT OFFICE.

, FREDRIK E. STROM AND CARL ELFSTROM, OF NEW YORK, N.

BOTTLE AND CAP THEREFOR.

Specification of Letters Patent. Application filed rpm s, 1906. Serial No. 312.549.

No. 837,648. Patented'Dec. 4, 1906.

To all whom it may concern:

Be it known that we, FREDRIK E. S'rnom, residing in Richmond Hill, in the borough of Queens, and CARL E. ELrs'rRoM, residing in the borough of Brooklyn, city of New York, in the State of New York, have invented certain new and useful Improvements in Bottles and Ca s Therefor, of which the following is a spec' cation, reference being had to the acv apart thereof.

ere bottles containing liquids under pressure are provided with screw-caps, the atter have a tendency to work loose to such an pressing the packing 0 between the ca and the bottle broken threads d are empioyed upon the bottle, being arranged at an inclination thereto, and corresponding threads e are provided upon the ca and are arranged at the same inclination t ereto, so as to cooperate with the threads d upon the bottle. The

provide for their disen agement the one set from the other after time cap is sufliciently tight upon the bottle and after other threads f and 9, arranged horizontally or transversely upon the bottle and the cap, respectively, extent that they are regarded as unsatisfachave engagedeachother. These horizontal tory for such purposes. This has been found threads f and g are below the inclined threads to be the case also where a yieldinghpacking and are so arranged with respect thereto that is employed between the cap and t e bottle as soon as the inclined threads have become and compressed between t disengaged they will be in square enga ee cap and the bottle to prevent the contents from leaking ment. There is a slight play between t e horizontal threads 9 and the horizontal out. It is probable that the loosening of the cap is due to the component of motion along threads f, so that as the cap is screwed down the threads of the screw,whichis produced by upon the bottle by the inclined threads the horizontal threads may properly engage each interior pressure or by the elasticity of the other and after which, as the cap continues packing, as the case may be.

It is the object of this invention to provide to be turned the threads g may move slightly downward between the threa sf.

means whereby a screw-cap may be employed v under the conditions mentioned and at the Referring now to the diagrams of Figs. 5, 6, same time may be locked upon the bottle in such a way as to be held absolutely from any loosening or displacement after it has once been screwed down inplace.

Another object of the invention is to provide such means to fasten the 'cap to the bottle and to hold it in place as shall make the application of the cap to the bottle and its the bottle and the threads upon the c'ap as the screwing down of the cap is begun is shown in Fig. 5. Fig. 6 illustrates the same parts when the cap is substantially half-way down, and Fig. 7 illustrates the same parts when the incllned threads have become disengaged. From Fig. 7 it will be seen that the cap is firmly held up engagement of the horizontal or transverse threads and that there can be no component of motion acting along these threads on account of any interior pressure in the bottle or on account of any elasticity in the packing c. It will also be seen from Fig. 7, which it will be understood illustrates the parts in the relative positions which they occupy when the The invention will be more fully described hereinafter with reference to the accompanying drawings, in which the invention has been embodied in a racticable form.

In the drawings, Figure 1 is a plan view of the cap. Fig. 2 is a vertical'section thereof. Fig. 3 1s a plan view of a bottle-neck. Fig. 4 is an elevation thereof. Figs. 5, 6, and 7 are diagrammatic views illustratin a development of. the curved surfaces of t e bottle and cap in three different positions.

A conventional form of cap is a, and an ordinary bottle-neck at b the cap in the present case being adapted to fit upon the outside of the bottle. In the top of the cap is a cork washer c or other suitable yielding packing, which is adapted when the cap is brought down upon the bottle to be compressed between the cap and the bottle. Forv screwing the cap upon the bottle and for commay be disengaged from the bottle by simply turning it in a right-handed direction, the parts then assuming again the positions shown in Fig. 5. 4

The arts d, e, f, and g, which have hereinbefore een referred to as broken threads or .as threads, are of course projections and may be referred to as pro'ect1ons. It willbe understood that the num er of these projections is in general immaterial. It will also be understood that the particular arrangement illustrated at object in breaking the threads (1 and e is to and 7 the relation between the threads upon cap is fastened upon the bottle, that the cap on the bottle by the and the cap may e reversed. and that other cap therefor, of a yielding packing between tween the bottle and the cap arranged at an inclination whereby the packing may be compressed between the bottle and the cap, and roken threads arranged transversely of the bottle and the cap to hold, thecap on the bottle.

4. The combination with a bottle and cap there or, of broken threads adapted to tighten of the "projections may be- -departed'from without avoiding the spirit of the invention. It Will befurther understood that the arrangement of the rojections upon the bottle kinds of caps. may be employed, such as caps which fit within the bottle instead of upon the outside ofjthe bottle.

Various other changes may be made in the device shown and described without departing from the invention.

e claim as -our invention- 1. The combination with a bottle and a cap therefor, of broken threads for tightening the cap on the bottle and. other broken threads for locking thecap thereto.

2'. The combination with a bottle and a cap therefor, of inclined projections upon the bottle, inclined projections upon the cap cooperating therewith, horizontal projections upon the bottle, and horizontal projections upon the cap cooperating with the latter proje'ctions.

3. The combination with a bottle and a threads adapted to engage wh'enthe firstnamed threads are disengaged to'lock the cap upon the bottle. 4

5." The combination with a bottle and a cap therefor'of a yielding acking between the bottle-and the cap, bro en threads upon the bottle and the cap arranged at an inclination, and horizontal threads upon the bottle and the cap adapted to engage after the inclined threads have been disengaged.

This s ecific'ation signed and witnessed this 9th day of April, 1906. FREDRIK E. STRQM.

CARL E. ELFSTROM; In presence of- HELEN L. PIERCE,

the bottle and the cap, broken threads be- LUoIUs E. VARNEY;

the cap upon the bottle, and other broken 

